Problem with update (hide total)

I recieve problem with hide total.
In my theme total hide, i change place of it more up (before time be in class “row”). All class row is hide.

How to update totals:

// calculate the item price
        if ( !empty($_POST['cart_item_key']) ) {
            $items = WC()->cart->get_cart();
	    $total = WC()->cart->get_cart_total();
            $cart_item_key = $_POST['cart_item_key'];

            if ( array_key_exists($cart_item_key, $items)) {
                $cart_item = $items[$cart_item_key];
                $_product = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
                $price = apply_filters( 'woocommerce_cart_item_subtotal', WC()->cart->get_product_subtotal( $_product, $cart_item['quantity'] ), $cart_item, $cart_item_key );
                $resp['price'] = $price;
            }
        }

<strong>        $total = apply_filters( 'woocommerce_cart_item_total', WC()->cart->get_cart_total());
        $resp['total'] = $total;</strong>

after:
el_qty.closest(‘.cart_item’).find(‘.product-subtotal’).html(resp.price)
add:
$(‘.amount’).html(resp.total);
el_qty.closest(‘.amount’).html(resp.total);

How to recieve problem when push button update change on error:
change:
$(“input[name=’update_cart’]”).val(‘Update’);
//$(“a.checkout-button.wc-forward”).removeClass(‘disabled’).html(resp.checkout_label);

This code recieve problems with script:
1.Hide totals in some themes;
2.Problems with errors (sometime can happens when push update cart). More better just hide this button.

Full code.
wooajaxcart.php

<?php
/*
  Plugin Name: Woo AJAX Cart
  Plugin URI: https://ragob.com/wooajaxcart
  Description: Change the default behavior of WooCommerce Cart page, making AJAX requests when quantity field changes
  Version: 1.2
  Author: Ygen Modify, author - Moises Heberle
  Author URI: https://codecanyon.net/user/moiseh
 */

// templates reference: cart.php , cart-totals.php

add_action('init', 'wac_init');
function wac_init() {
    // force to make is_cart() returns true, to make right calculations on class-wc-cart.php (WC_Cart::calculate_totals())
    // this define fix a bug that not show Shipping calculator when is WAC ajax request
    if ( !empty($_POST['is_wac_ajax']) && !defined( 'WOOCOMMERCE_CART' ) ) {
        define( 'WOOCOMMERCE_CART', true );
    }
}

add_action('woocommerce_before_cart_contents', 'wac_cart_demo');
function wac_cart_demo() {
    if ( defined('IS_DEMO')) {
        wac_demo_msg('Change the product quantity to see the AJAX update made by WooAjaxCart plugin');
    }
}

add_action('woocommerce_archive_description', 'wac_shop_demo');
function wac_shop_demo() {
    if ( defined('IS_DEMO')) {
        wac_demo_msg('Add some items to cart and go to the "Cart" page to see this plugin in action');
    }
}

// on submit AJAX form of the cart
// after calculate cart form items
add_action('woocommerce_cart_updated', 'wac_update');
function wac_update() {
    // is_wac_ajax: flag defined on wooajaxcart.js

    if ( !empty($_POST['is_wac_ajax'])) {
        $resp = array();
        $resp['update_label'] = __( 'Update Cart', 'woocommerce' );
        $resp['checkout_label'] = __( 'Proceed to Checkout', 'woocommerce' );
        $resp['price'] = 0;

        // render the cart totals (cart-totals.php)
        ob_start();
        do_action( 'woocommerce_after_cart_table' );
        do_action( 'woocommerce_cart_collaterals' );
        do_action( 'woocommerce_after_cart' );
        $resp['html'] = ob_get_clean();
        $resp['price'] = 0;
        $resp['total'] = 0;

        // calculate the item price
        if ( !empty($_POST['cart_item_key']) ) {
            $items = WC()->cart->get_cart();
	    $total = WC()->cart->get_cart_total();
            $cart_item_key = $_POST['cart_item_key'];

            if ( array_key_exists($cart_item_key, $items)) {
                $cart_item = $items[$cart_item_key];
                $_product = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
                $price = apply_filters( 'woocommerce_cart_item_subtotal', WC()->cart->get_product_subtotal( $_product, $cart_item['quantity'] ), $cart_item, $cart_item_key );
                $resp['price'] = $price;
            }
        }

        $total = apply_filters( 'woocommerce_cart_item_total', WC()->cart->get_cart_total());
        $resp['total'] = $total;

        echo json_encode($resp);
        exit;
    }
}

// on render cart table page
add_action('woocommerce_before_cart_table', 'wac_cart_table');
function wac_cart_table() {
    // add js hacks script
    wp_register_script('wooajaxcart', plugins_url('wooajaxcart2.js', __FILE__));
    wp_enqueue_script('wooajaxcart');
}

function wac_demo_msg($text) {
    echo sprintf('<div style="background-color: lightgreen; padding: 5px; margin: 5px; border-radius: 3px">* %s</div>', $text);
}

wooajaxcart2:

jQuery(document).ready(function($){
    $('.qty').on('change', function(){
        form = $(this).closest('form');

        // emulates button Update cart click
        $("<input type='hidden' name='update_cart' id='update_cart' value='1'>").appendTo(form);

        // plugin flag
        $("<input type='hidden' name='is_wac_ajax' id='is_wac_ajax' value='1'>").appendTo(form);

        el_qty = $(this);
        matches = $(this).attr('name').match(/cart\[(\w+)\]/);
        cart_item_key = matches[1];
        form.append( $("<input type='hidden' name='cart_item_key' id='cart_item_key'>").val(cart_item_key) );

        // get the form data before disable button...
        formData = form.serialize();

        $("input[name='update_cart']").val('Обновление…');
        //$("input[name='update_cart']").val('Updating…').prop('disabled', true);
        //$("a.checkout-button.wc-forward").addClass('disabled').html('Updating…');

        $.post( form.attr('action'), formData, function(resp) {
            // ajax response
            //$('.cart-collaterals').html(resp.html);
            $('.totalik').html(resp.total);

            el_qty.closest('.cart_item').find('.product-subtotal').html(resp.price);
            el_qty.closest('.totalik').find('.amount').html(resp.total);

            $('#update_cart').remove();
            $('#is_wac_ajax').remove();
            $('#cart_item_key').remove();

            $("input[name='update_cart']").val('Пересчитать корзину');

            //$("a.checkout-button.wc-forward").removeClass('disabled').html(resp.checkout_label);

            // when changes to 0, remove the product from cart
            if ( el_qty.val() == 0 ) {
                el_qty.closest('tr').remove();
            }
        },
        'json'
        );
    });
});

add in your cart.php theme code to show totals:
<div><h3>Total: <div style='float:right;' class='totalik'>?<?php wc_cart_totals_order_total_html(); ?></div></h3></div>

Closing this support because other users not related this issue. Reopen or answer here if needed.